Have you considered doing a post / series on which shoes are good for cycling?

I guess it could be called 'Cycling in heels' but it would be particularly interesting, more for the unisex lessons e.g. how not to scratch leather on the Brompton ones, how to ride with a bit of heel, or with boots...

Good idea. I will think about what kind of shoes are best. But in the end I believe that you should be able to cycle in any kind of shoe or boot you want to. I think the Brompton pedals are not kind to shoe soles but this depends on the sole as I don't have this problem with all my shoes/boots.